Breed at the Day-Care, hatch Eggs, draw MAIL stationery and browse the Hall of Fame (Closes #29)

- Day-Care and breeding: deposits, withdrawal pricing and growth,
  compatibility, egg species, DVs and moves, DayCareStep, egg
  collection and the Odd Egg, compared with the cartridge's routines.
- CountStep: walking happiness, DoEggStep, DayCareStep and DoBikeStep
  in the original's order; HatchEggs with the ROM's hatch animation,
  compared frame by frame with the original.
- MAIL: all ten stationery types and the Portrait MAIL picture,
  compared with the cartridge's tilemaps, graphics and palettes.
- Printing: Bill's PC boxes, Pokedex PRNT, MAIL and the Photo Studio
  take the original's absent-printer path.
- Hall of Fame records (saved apart from the League flag, ready for the
  League to call) and the Hall of Fame PC, compared with the cartridge's
  _HallOfFamePC on 255 pages.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/move-effects.test.ts

@@ -317,6 +317,16 @@ describe.skipIf(!existsSync(romPath))("move effects with the local ROM", () => {
       expect(texts.some((text) => text.startsWith("Hit "))).toBe(false);
     });
 
+    it("lets an Egg with stored HP join Beat Up, but skips a zero-HP Egg", () => {
+      const party = [
+        mon(CYNDAQUIL, 30, [BEAT_UP], { nickname: "ALPHA" }),
+        mon(TOTODILE, 5, [TACKLE], { nickname: "EGG", egg: true }),
+        mon(PIDGEY, 5, [TACKLE], { nickname: "EGG", egg: true, hp: 0 }),
+      ];
+      const { texts } = firstTurn(duel(party, [mon(SNORLAX, 60, [SPLASH])]));
+      expect(texts.filter((text) => text.endsWith("'s attack!"))).toEqual(["ALPHA's attack!", "EGG's attack!"]);
+    });
+
     it("lets a lone Pokémon beat up once, then ends the move", () => {
       const { texts } = firstTurn(duel([mon(CYNDAQUIL, 30, [BEAT_UP], { nickname: "ALPHA" })], [mon(SNORLAX, 60, [SPLASH])]));
       expect(texts.filter((text) => text.endsWith("'s attack!"))).toEqual(["ALPHA's attack!"]);